Hebrew words for sin

Three of the four Hebrew words for “sin” appear in Ps 32.1-2 and 5: (ESV)

1 Blessed is the one whose transgression is forgiven, whose sin is covered.

2 Blessed is the man against whom the LORD counts no iniquity, and in whose spirit there is no deceit.

5 I acknowledged my sin to you, and I did not cover my iniquity; I said, “I will confess my transgressions to the LORD,” and you forgave the iniquity of my sin. Selah